
I have the exact fixture but the only 24" model over my frag tank. It works but it's just not the greatest as far as spectrum and intensity. With Only 4 bulbs you don't get the bulb selection or the par numbers. Everthing in there is doing fine, but I have that frag rack higher to get more light. It's 118 par right under the waters surface. It all depends on what you are trying to achieve really. If you need more light you could easily add a 48" led
Light bar (assuming your 65 is a 48" tank) and that would give you the led shimmer, some blue spectrum, while getting the benefits of t5 all while raising your par numbers. That's probably what I would do. For reference here is my 8 bulb Ati over my tank I'm setting up next to my frag tank with the aquatic life fixture.
As far as the timer goes, I got tired of programming the dang thing. I set the clock and have been using the automatic schedule for a few months. I think it's 10 hours both channels, with an hour of the blue before and after? That's fine. It's primarily LPS in there